METHOD FOR IMPLEMENTING DUAL PORT MEMORY BY USING RANDOM ACCESS MEMORY IN BUS STRUCTURE SYSTEM

摘要

A kind of purpose: method, exchange information is easily provided to for implementing a dual-ported memory (DPM), by forming memory by the existing random access memory (RAM) in a plate from liking access one outside DPM, in a kind of bus structures system. Construction: a kind of method uses a random access memory (RAM) in a kind of bus structures system for implementing a dual-ported memory (DPM). Method establishes device (16) composition one plate (4) as an address reader (10), an interrupt generator (11), a buffer (12), a central processing unit (13), RAM (14), a local memory (15) and a plot. Board of directors's exchange information has other plates by a bus (1). RAM such as DPM read and with the information for closing both sides. Method accesses all memory region of a particular area of memory or the board of directors from the outsides DPM are liked.